If price is really no issue, and you need absolute accuracy and color quality. Look into NEC displays. NEC makes great medical grade displays that have lower refresh times but fantastic image quality.

That first Dell looks perfect. I'll need to check it out in person first, I was looking at a few by NEC, but I can get what I need without spending that much.

After a bit more looking I can't decide if I want a 27 or 30" or 2 23" and mount them on an Ergotronic mount side by side. Or maybe 27" next to a 23", except my OCD would drive me insane that they weren't the same.

If you are looking for the most accurate colours then you will want to get something with an IPS panel like the first $500 Dell that was posted. There is also the Asus PA246Q at the same price and with a quick google search it seems the Asus is just a bit better: http://www.amazon.com/Asus-PA246Q-24...5628628&sr=1-1